Effect of post-weld heat treatment on joint properties of friction welded joint between brass and low carbon steel
Effect of post-weld heat treatment on joint properties of friction welded joint between brass and low carbon steel
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DOI：
10.1179/136217110x12813393169615
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发表时间：
2010-10-01
影响因子：
3.3
通讯作者：
Fuji, A.
中科院分区：
文献类型：
--
作者：
Kimura, M.;Kusaka, M.;Fuji, A.
本文描述了焊后热处理（PWHT）对铜锌合金（黄铜）和低碳钢摩擦焊接头接头性能的影响。焊接接头获得100%的接头效率，黄铜母材断裂，焊接界面无裂纹，无金属间化合物层。焊后热处理的接头效率随着加热温度和保温时间的增加而降低，并且其分散度随着参数的增加而增加。当接头在823 K下热处理360 ks时，尽管没有金属间化合物，但接头效率并未达到100%，并且焊接界面与黄铜母材之间发生断裂。焊接界面周边部分的裂纹是通过 PWHT 产生的。裂纹是由于焊后热处理过程中黄铜侧脱锌和脆化造成的。
This paper describes the effect of post-weld heat treatment (PWHT) on joint properties of copper-zinc alloy (brass) and low carbon steel friction welded joints. The as-welded joint obtained 100% joint efficiency and the brass base metal fracture without cracking at the weld interface, and had no intermetallic compound layer. The joint efficiency with PWHT decreased with increasing heating temperature and its holding time, and its scatter increased with those increasing parameters. When the joint was heat treated at 823 K for 360 ks, it did not achieve 100% joint efficiency and fractured between the weld interface and the brass base metal although it had no intermetallic compound. The cracking at the peripheral portion of the weld interface was generated through PWHT. The cracking was due to the dezincification and the embrittlement of the brass side during PWHT.